Re: [PATCH] fsl/qe: ucc: copy and paste bug in ucc_get_tdm_sync_shift()

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On Mon, 4 Jun 2018, Dan Carpenter wrote:

> There is a copy and paste bug so we accidentally use the RX_ shift when
> we're in TX_ mode.
>
> Fixes: bb8b2062aff3 ("fsl/qe: setup clock source for TDM mode")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> ---
> Static analysis work.  Not tested.  This affects the success path, so
> we should probably test it.

Maybe this is another one?  I don't have time to look into it at the
moment...

drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c

 	/* For strict priority entries defines the number of consecutive
 	 * slots for the highest priority.
 	 */
	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_NUM_STRICT_ARB_SLOTS :
		   NIG_REG_P1_TX_ARB_NUM_STRICT_ARB_SLOTS, 0x100);
 	/* Mapping between the CREDIT_WEIGHT registers and actual client
 	 * numbers
 	 */

I find some others that choose between constants, such as ... ? 0 : 0.

julia


>
> diff --git a/drivers/soc/fsl/qe/ucc.c b/drivers/soc/fsl/qe/ucc.c
> index c646d8713861..681f7d4b7724 100644
> --- a/drivers/soc/fsl/qe/ucc.c
> +++ b/drivers/soc/fsl/qe/ucc.c
> @@ -626,7 +626,7 @@ static u32 ucc_get_tdm_sync_shift(enum comm_dir mode, u32 tdm_num)
>  {
>  	u32 shift;
>
> -	shift = (mode == COMM_DIR_RX) ? RX_SYNC_SHIFT_BASE : RX_SYNC_SHIFT_BASE;
> +	shift = (mode == COMM_DIR_RX) ? RX_SYNC_SHIFT_BASE : TX_SYNC_SHIFT_BASE;
>  	shift -= tdm_num * 2;
>
>  	return shift;
> --
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